On Wed, Sep 22, 2021 at 11:36 AM Fernando Q. Gouvea <fqgou...@colby.edu> wrote:
>
> I just had SageMath 9.2 crash, so I tried installing 9.3. Alas, I get the 
> same problem. The offending command is pretty innocuous:
>
> sage: plot(ln(1+x),(-1,5))
>
> The Sage window then crashes. In the notebook I get a message that the kernel 
> just died. Running it in the Sage Terminal, sage crashes and leaves this 
> message behind:
>
> ------------------------------------------------------------------------
> Unhandled SIGSEGV: A segmentation fault occurred.
> This probably occurred because a *compiled* module has a bug
> in it and is not properly wrapped with sig_on(), sig_off().
> Python will now terminate.
> ------------------------------------------------------------------------
> /opt/sagemath-9.3/src/bin/sage-python: line 2:  1535 Segmentation fault      
> (core dumped) sage -python "$@"
>
> Any ideas as to what is going on?

Do lots of things you try cause problems like this or is it just plotting?

E.g., what if you do some basic arithmetic with p-adic numbers, e.g.,
some examples from here:

https://doc.sagemath.org/html/en/reference/padics/sage/rings/padics/tutorial.html

(Sorry, I can't help asking that given that I learned all about
p-adics from your book decades ago...)

>
> Fernando
>
>
> --
> ==================================================================
> Fernando Q. Gouvea
> Carter Professor of Mathematics
> Colby College
> Mayflower Hill 5836
> Waterville, ME 04901
> fqgou...@colby.edu   http://www.colby.edu/~fqgouvea
>
> Humility engenders learning because it beats back the arrogance
> that puts blinders on. It leaves you open for truths to reveal
> themselves. You don't stand in your own way.
>   -- Wynton Marsalis
>
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-- 
William (http://wstein.org)

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